Weird first time !
That weird I bought a licence, activated it, but I can't add links to my menu it says server error - Forbidden
I'm working on a staging website, but with its own licence
Do I have to do something on the server side, running WordPress on a sub-domaine on Hostinger. Classic setup.
I did reset the permalinks twice.
I did turn off Litespeed cache
Looks like your sercer is blocking the REST API request.
Shahjahan Jewel Thank you ! I deactivated the Hostinger CDN Fonction ( push it as dev) and now it works...
I've had the same problem. Deactivating the CDN solved It flawlessly! Thanks.